He got an A in last week's math test.It is ______!His math is always the worst.
There _______ a mother,a father and children in the family.
I haven’t got ________ erasers.I think Ann has got ________.
There are two American boys and ____English girl in my class.
Betty is in front of me,so I am ________Betty.
There’s old pencil on the book. pencil is mine.